1// Copyright 2009 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --expose-debug-as debug
29// Get the Debug object exposed from the debug context global object.
30Debug = debug.Debug
31
32var exception = false;  // Exception in debug event listener.
33var before_compile_count = 0;
34var after_compile_count = 0;
35var compile_error_count = 0;
36var current_source = '';  // Current source being compiled.
37var source_count = 0;  // Total number of scources compiled.
38var host_compilations = 0;  // Number of scources compiled through the API.
39var eval_compilations = 0;  // Number of scources compiled through eval.
40
41
42function compileSource(source) {
43  current_source = source;
44  eval(current_source);
45  source_count++;
46}
47
48
49function listener(event, exec_state, event_data, data) {
50  try {
51    if (event == Debug.DebugEvent.BeforeCompile ||
52        event == Debug.DebugEvent.AfterCompile ||
53        event == Debug.DebugEvent.CompileError) {
54      // Count the events.
55      if (event == Debug.DebugEvent.BeforeCompile) {
56        before_compile_count++;
57      } else if (event == Debug.DebugEvent.AfterCompile) {
58        after_compile_count++;
59        switch (event_data.script().compilationType()) {
60          case Debug.ScriptCompilationType.Host:
61            host_compilations++;
62            break;
63          case Debug.ScriptCompilationType.Eval:
64            eval_compilations++;
65            break;
66        }
67      } else {
68        compile_error_count++;
69      }
70
71      // If the compiled source contains 'eval' there will be additional compile
72      // events for the source inside eval.
73      if (current_source.indexOf('eval') == 0) {
74        // For source with 'eval' there will be compile events with substrings
75        // as well as with with the exact source.
76        assertTrue(current_source.indexOf(event_data.script().source()) >= 0);
77      } else {
78        // For source without 'eval' there will be a compile events with the
79        // exact source.
80        assertEquals(current_source, event_data.script().source());
81      }
82      // Check that script context is included into the event message.
83      var json = event_data.toJSONProtocol();
84      var msg = eval('(' + json + ')');
85      assertTrue('context' in msg.body.script);
86
87      // Check that we pick script name from //# sourceURL, iff present
88      if (event == Debug.DebugEvent.AfterCompile) {
89        assertEquals(current_source.indexOf('sourceURL') >= 0 ?
90            'myscript.js' : undefined,
91                     event_data.script().name());
92      }
93    }
94  } catch (e) {
95    exception = e
96  }
97};
98
99
100// Add the debug event listener.
101Debug.setListener(listener);
102
103// Compile different sources.
104compileSource('a=1');
105compileSource('(function(){})');
106compileSource('eval("a=2")');
107source_count++;  // Using eval causes additional compilation event.
108compileSource('eval("eval(\'(function(){return a;})\')")');
109source_count += 2;  // Using eval causes additional compilation event.
110compileSource('JSON.parse(\'{"a":1,"b":2}\')');
111// Using JSON.parse does not causes additional compilation events.
112compileSource('x=1; //# sourceURL=myscript.js');
113
114try {
115  compileSource('}');
116} catch(e) {
117}
118
119// Make sure that the debug event listener was invoked.
120assertFalse(exception, "exception in listener")
121
122// Number of before and after + error events should be the same.
123assertEquals(before_compile_count, after_compile_count + compile_error_count);
124assertEquals(compile_error_count, 1);
125
126// Check the actual number of events (no compilation through the API as all
127// source compiled through eval).
128assertEquals(source_count, after_compile_count);
129assertEquals(0, host_compilations);
130assertEquals(source_count, eval_compilations);
131
132Debug.setListener(null);
133